Reflectance spectra of nine boreal Sphagnum moss species

Collection of the Sphagnum moss samples and measurements of their reflectance spectra and moisture are described in detail in Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Rautiainen, M. (2023). Intra- and interspecific variation in spectral properties of dominant Sphagnum moss species in boreal peatlands. Ecology and Evolution. DOI: 10.1002/ece3.10197.
The dataset consists of biconical reflectance factors of nine Sphagnum moss species collected from southern Finland, as well as the moisture percent of the samples at the time of the measurement. The samples were collected in May 2022, and the nadir-view reflectance factors were measured in a dark laboratory using an ASD FieldSpec 4 spectrometer. The spectral range of measurements was 350-2500nm. During the measurement, the sample was illuminated with a 12V 50W Quartz Tungsten Halogen lamp, with an illumination angle of 40º. The spectra of nine species are reported with 10 samples for each species. The size of each sample was 21.7 * 21.5cm, and they were measured four times: as fresh (0h), after one day (24h), two days (48h) and one week (1w) of the sample collection. Between the spectral measurements, the samples were stored in open containers in a semi-dark room with no direct sunlight and standard temperature (average 20.5ºC) and air humidity (average 29%). Example photographs of the fresh sampled species and details of determining the moisture percent can be found from the file Data_description_V3.pdf.
The spectra are reported in two versions: as raw data (_raw) and as smoothed with Savitzky-Golay filter with 25nm window (_smoothed). The first three rows in the data contain information for citing and reading the data, after which the sample information, moisture percent and the reflectance spectra are provided. The encoding of the csv file is UTF-8.
The most recent version of the dataset (V3) includes moisture data together with the reflectance spectra, unlike the earlier versions (V1, V2), which contain only the reflectance spectra.

List of the measured species:
Sphagnum angustifolium
Sphagnum capillifolium
Sphagnum centrale
Sphagnum cuspidatum
Sphagnum fallax
Sphagnum fuscum
Sphagnum girgensohnii
Sphagnum riparium
Sphagnum rubellum

If you use this dataset, please cite:
1) Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Rautiainen, M. (2023). Intra- and interspecific variation in spectral properties of dominant Sphagnum moss species in boreal peatlands. Ecology and Evolution, DOI: 10.1002/ece3.10197
2) Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Hovi, A., Rautiainen, M. (2023). Reflectance spectra of nine boreal Sphagnum moss species. Mendeley Data, V3, DOI: 10.17632/wm5fcxdmzd.3